Read this excerpt.

I must close now. But before closing I am impelled to mention one other point in your statement that troubled me profoundly. You warmly commended the Birmingham police force for keeping “order” and “preventing violence.” I don’t believe you would have so warmly commended the police force if you had seen its angry violent dogs literally biting six unarmed, nonviolent Negroes. I don’t believe you would so quickly commend the policemen if you would observe their ugly and inhuman treatment of Negroes here in the city jail; if you would watch them push and curse old Negro women and young Negro girls; if you would see them slap and kick old Negro men and young Negro boys; if you will observe them, as they did on two occasions, refuse to give us food because we wanted to sing our grace together. I’m sorry that I can’t join you in your praise for the police department.

In his “Letter from Birmingham City Jail,” how does Martin Luther King, Jr. connect the public and private actions of the police?

They are both meant to avoid punishment.

They are both meant to earn commendation.

They are both meant to show nonviolence.

They are both meant to preserve segregation.

In his "Letter from Birmingham City Jail", Martin Luther King Jr. narrates his involvement with the non-violent protests against the indiscrimination that his people suffered at the hands of the whites. His letter was a response to the criticism that he got after being involved in it.

In the given excerpt from the letter, King talks about the police action, both public and private. While in public, they are "commended for keeping order and preventing violence", privately, they are violent and hurtful, inflicting physical torture on negroes, even "old Negro women and young Negro girls ... old Negro men and young Negro boys". These two "faces" of the police force are connected by King to suggest the idea that such actions are done to preserve segregation.

Thus, the correct answer is the fourth option.